Data de-duplication processing method for point-to-point transmission and system thereof

Abstract

A data de-duplication processing method for point-to-point transmission and a system thereof. An originating client sends a file recovery request to an information management server and a data storage server; obtaining a plurality of partitioned data blocks; if the partitioned data block in the file recovery request in the information management server, the information management server searches for the data storage server according to the file recovery request and returns the found data storage server and the partitioned data block belonging to the data storage server to the originating client as a response; if the partitioned data block in the file recovery request in a target client, the target client transports the partitioned data block to the originating client; the originating client performs data recovery of an input file on the partitioned data blocks according to the partitioned data blocks obtained from the target clients and the data storage server.

1 . A data de-duplication processing method for point-to-point transmission, applicable for an originating client to recover an input file after a data de-duplication procedure, comprising:
 the originating client sending a file recovery request to an information management server and at least one target client, for obtaining a plurality of partitioned data blocks of the input file;   if the partitioned data block in the file recovery request exists in the information management server, the information management server searching for a data storage server according to the file recovery request and returning the found data storage server and the partitioned data block belonging to the data storage server to the originating client as a response;   if the partitioned data block in the file recovery request exists in the target client, the target client transporting the partitioned data block to the originating client; and   the originating client performing data recovery of the input file on the partitioned data blocks according to the partitioned data blocks obtained from the target clients and the data storage server.   
     
     
         2 . The data de-duplication processing method for the point-to-point transmission according to  claim 1 , wherein the partitioned data blocks stored in the originating client are different from the partitioned data blocks stored in the target client. 
     
     
         3 . The data de-duplication processing method for the point-to-point transmission according to  claim 1 , wherein after completing the data de-duplication procedure, the originating client or the target client registers the partitioned data blocks belonging to the originating client or the target client on the information management server. 
     
     
         4 . The data de-duplication processing method for the point-to-point transmission according to  claim 1 , wherein the originating client decides to obtain the corresponding partitioned data block from the target client or the data storage server according to a transport estimate value. 
     
     
         5 . A data de-duplication processing system for point-to-point transmission, applicable for a client to recover an input file after a data de-duplication procedure, comprising:
 at least one client, performing the data de-duplication procedure on the input file and generating partitioned data blocks corresponding to the input file, wherein the client for sending a file recovery request is defined as an originating client, and others are target clients;   a data storage server, storing a plurality of partitioned data blocks; and   an information management server, recording the client having the partitioned data blocks,   wherein if the information management server records the partitioned data blocks in the file recovery request, the information management server searches for other target clients having the partitioned data blocks according to the file recovery request and returns the found target clients and the partitioned data blocks belonging to the target clients to the originating client as a response, and the originating client performs data recovery of the input file on the partitioned data blocks according to the partitioned data blocks obtained from the target clients and the data storage server.   
     
     
         6 . The data de-duplication processing system for the point-to-point transmission according to  claim 5 , wherein after completing the data de-duplication procedure, the originating client or the target client registers the partitioned data blocks belonging to the originating client or the target client on the information management server. 
     
     
         7 . The data de-duplication processing system for the point-to-point transmission according to  claim 5 , wherein the originating client decides to obtain the corresponding partitioned data block from the target client or the data storage server according to a transport estimate value.